/**
 * Copyright (C) 2016 Hyphenate Inc. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *     http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.zyzd.baseprojectofvolly.chat.activity;

import android.annotation.SuppressLint;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.support.v4.content.LocalBroadcastManager;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.view.WindowManager;
import android.view.inputmethod.InputMethodManager;

import com.hyphenate.easeui.controller.EaseUI;
import com.zyzd.baseprojectofvolly.Constant;

@SuppressLint({"NewApi", "Registered"})
public class EaseBaseActivity extends AppCompatActivity {

    protected InputMethodManager inputMethodManager;
    private LocalBroadcastManager broadcastManager;
    private BroadcastReceiver broadcastReceiver;
    
    @Override
    protected void onCreate(Bundle arg0) {
        super.onCreate(arg0);
        //http://stackoverflow.com/questions/4341600/how-to-prevent-multiple-instances-of-an-activity-when-it-is-launched-with-differ/
        // should be in launcher activity, but all app use this can avoid the problem
        if(!isTaskRoot()){
            Intent intent = getIntent();
            String action = intent.getAction();
            if(intent.hasCategory(Intent.CATEGORY_LAUNCHER) && action.equals(Intent.ACTION_MAIN)){
                finish();
                return;
            }
        }

        inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
        registerBroadcastReceiver();
    }

    @Override
    protected void onResume() {
        super.onResume();
        // cancel the notification
        EaseUI.getInstance().getNotifier().reset();
    }

    protected void hideSoftKeyboard() {
        if (getWindow().getAttributes().softInputMode != WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN) {
            if (getCurrentFocus() != null)
                inputMethodManager.hideSoftInputFromWindow(getCurrentFocus().getWindowToken(),
                        InputMethodManager.HIDE_NOT_ALWAYS);
        }
    }

    /**
     * back
     *
     * @param view
     */
    public void back(View view) {
        finish();
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        unregisterBroadcastReceiver();
    }

    /**
     * 注册本地广播
     */
    protected void registerBroadcastReceiver() {
        broadcastManager = LocalBroadcastManager.getInstance(getApplicationContext());
        IntentFilter intentFilter = new IntentFilter();
        intentFilter.addAction(Constant.ACTION_CLOSE_ALL_ACTIVITY);//联系人变化
        broadcastReceiver = new BroadcastReceiver() {

            @Override
            public void onReceive(Context context, Intent intent) {
                EaseBaseActivity.this.finish();
            }
        };
        broadcastManager.registerReceiver(broadcastReceiver, intentFilter);//注册广播
    }

    /**
     * 注册本地广播
     */
    private void unregisterBroadcastReceiver() {
        broadcastManager.unregisterReceiver(broadcastReceiver);
    }
}
